Question

Using the first definition of coefficient of elasticity given in the lab (based on velocity), if a ball strikes a surface with a speed of 10 m/s and rebounds just after the collsion with a speed of 3 m/s, what is the coefficient of elasticity

Answer 1

The coefficient of elasticity is a measure of the elasticity of a collision, defined as the ratio of speeds after and before the collision. In this case, the coefficient of elasticity is 0.3.

Step-by-step explanation:

The coefficient of elasticity, also known as the coefficient of restitution (c), is a measure of the elasticity of a collision between a ball and an object. It is defined as the ratio of the speeds after and before the collision.

In this case, the ball strikes a surface with a speed of 10 m/s and rebounds with a speed of 3 m/s. To find the coefficient of elasticity, we can use the formula c = (v_final / v_initial), where v_final is the final velocity and v_initial is the initial velocity.

Therefore, the coefficient of elasticity in this case would be c = (3 m/s / 10 m/s) = 0.3.

Answer 2

e = 0.3

Step-by-step explanation:

Given:

- The strike speed vi = 10 m/s

- The rebound speed vf = 3 m/s

- The coefficient of elasticity = e

Find:

what is the coefficient of elasticity

Solution:

- The coefficient of elasticity e is given as a ratio of after and before impact speeds.

e = v_f / v_i

- The coefficient of elasticity for the given cas is as follows:

e = 3 / 10

e = 0.3

- The after impact speed is 3 tenth of the strike speed